Question two

Still referring to the buck converter, assume V_IN=12 V, V_OUT=1.2 V, I_OUT=20 A, f_sw=1 MHz. If the T_d(on)=T_d(off)= 20 ns, calculate the both eGaN FET and MOSFET body diode power loss. Again, both operate at room temperature (25 C).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A. MOSFET: 56 W   eGaN FET: 160 W

B. MOSFET: 1.6 W   eGaN FET: 0.56 W

C. MOSFET: 0.19 W   eGaN FET: 0.86 W

D. MOSFET: 0.56 W   eGaN FET: 1.6 W

E. MOSFET: 0.28 W   eGaN FET: 0.8 W